Butterfly valves for applications that require completely sealed, zero gas leak test, higher life requirements, operating temperature of -10 degrees to 150 degrees of fresh water, sewage, water, salt water, steam, gas, food, pharmaceutical, oil and various pH and other pipeline. Soft sealing butterfly valve is suitable for two-way valves open and close and adjust ventilation and dust Nanhai Yongxing pipeline, widely used in metallurgy, light industry, power, petrochemical and gas pipeline systems and other waterways. Metal-to-metal seals double eccentric butterfly wire suitable for urban heating, gas, water and other gas, oil, acid and other pipeline valve manufacturers in Guangdong, as a regulator, and throttle. Metal to metal sealing butterfly valve in addition to the surface as a large pressure swing adsorption (PSA) gas separation plant process control valve to use, but also widely used in petroleum, petrochemical, chemical, metallurgy, electric power, when the valve, the valve good alternative products. Nanhai Yongxing valve, the valve out of Hong Kong (certified), the valve is provided by Valve Co., Ltd., Dongguan Ming Hong Kong. Port Valve Co., Ltd., Dongguan Ming (www.gdmgfm.com) is Dongguan, butterfly leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the next port of the valve leading the staff warmly welcome all inquiries negotiations to create the next port of the valve a better future.